/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

//package com.dmetasoul.lakesoul.lakesoul.local.arrow.writers;
//
//import org.apache.arrow.vector.complex.ListVector;
//import org.apache.flink.annotation.Internal;
//import org.apache.flink.table.data.ArrayData;
//import org.apache.flink.table.data.RowData;
//import org.apache.flink.util.Preconditions;
//
///**
// * {@link ArrowFieldWriter} for Array.
// */
//@Internal
//public abstract class ArrayWriter<T> extends ArrowFieldWriter<T> {
//
//    public static ArrayWriter<RowData> forRow(
//            ListVector listVector, ArrowFieldWriter<ArrayData> elementWriter) {
//        return new ArrayWriterForRow(listVector, elementWriter);
//    }
//
//    public static ArrayWriter<ArrayData> forArray(
//            ListVector listVector, ArrowFieldWriter<ArrayData> elementWriter) {
//        return new ArrayWriterForArray(listVector, elementWriter);
//    }
//
//    // ------------------------------------------------------------------------------------------
//
//    private final ArrowFieldWriter<ArrayData> elementWriter;
//
//    private ArrayWriter(ListVector listVector, ArrowFieldWriter<ArrayData> elementWriter) {
//        super(listVector);
//        this.elementWriter = Preconditions.checkNotNull(elementWriter);
//    }
//
//    abstract boolean isNullAt(T in, int ordinal);
//
//    abstract ArrayData readArray(T in, int ordinal);
//
//    @Override
//    public void doWrite(T in, int ordinal) {
//        if (!isNullAt(in, ordinal)) {
//            ((ListVector) getValueVector()).startNewValue(getCount());
//            ArrayData array = readArray(in, ordinal);
//            for (int i = 0; i < array.size(); i++) {
//                elementWriter.write(array, i);
//            }
//            ((ListVector) getValueVector()).endValue(getCount(), array.size());
//        }
//    }
//
//    @Override
//    public void finish() {
//        super.finish();
//        elementWriter.finish();
//    }
//
//    @Override
//    public void reset() {
//        super.reset();
//        elementWriter.reset();
//    }
//
//    // ------------------------------------------------------------------------------------------
//
//    /**
//     * {@link ArrayWriter} for {@link RowData} input.
//     */
//    public static final class ArrayWriterForRow extends ArrayWriter<RowData> {
//
//        private ArrayWriterForRow(
//                ListVector listVector, ArrowFieldWriter<ArrayData> elementWriter) {
//            super(listVector, elementWriter);
//        }
//
//        @Override
//        boolean isNullAt(RowData in, int ordinal) {
//            return in.isNullAt(ordinal);
//        }
//
//        @Override
//        ArrayData readArray(RowData in, int ordinal) {
//            return in.getArray(ordinal);
//        }
//    }
//
//    /**
//     * {@link ArrayWriter} for {@link ArrayData} input.
//     */
//    public static final class ArrayWriterForArray extends ArrayWriter<ArrayData> {
//
//        private ArrayWriterForArray(
//                ListVector listVector, ArrowFieldWriter<ArrayData> elementWriter) {
//            super(listVector, elementWriter);
//        }
//
//        @Override
//        boolean isNullAt(ArrayData in, int ordinal) {
//            return in.isNullAt(ordinal);
//        }
//
//        @Override
//        ArrayData readArray(ArrayData in, int ordinal) {
//            return in.getArray(ordinal);
//        }
//    }
//}
